Excess load detection device for cable traction tilt transport vehicle

Abstract

To provide an excessive load detection device for a cable traction tilt transport vehicle, which can well monitor a load applied on a cable for pulling the vehicle at a cable traction tilt transport facility.SOLUTION: At a cable traction tilt transport facility which has a rail 12 laid between stops 10 and 11 having a level difference and pulls a vehicle 14 traveling on the rail 12 by a cable 13 to transport it, a cable drum 22 on which the cable 13 is wound to hook the end of the cable 13 is rotatably provided on the vehicle 14. A load detection unit 30 is formed in the cable drum 14 so as to bulge to the outer circumferential side. A road cell 31 is fixed to a position against which the load detection unit 30 rotates to abut, and the abutment load of the load detection unit 30 is measured.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an overload detection device for a cable-traction type inclined transport vehicle that transports passengers and goods by towing the vehicle on a slope with a cable. [Background technology]

[0002] Cable-traction type inclined transport facilities, which transport passenger cars or bogies (hereinafter collectively referred to as vehicles) by pulling them on inclined ground, are known as passenger facilities such as cable cars that transport people, and industrial facilities such as inclines that transport goods. A typical configuration of cable-traction type inclined transport facilities is to movably install vehicles on laid rails, and drive the cables connected to the vehicles by winding them around them with winches or pulleys, so that the vehicles move along the rails.

[0003] A typical configuration for cable-pulling inclined transport facilities is to provide a pulley for driving the cable at the station on the mountaintop side, wind the cable around the pulley, and connect vehicles to both ends of the cable, or to connect a vehicle to one end of the cable and a counterweight to the other end, so-called bucket-type operation (see, for example, Patent Document 1).In addition to the bucket type, there is also a system in which a vehicle is connected to the end of the cable, and the cable is wound up or let out by a winch provided at the station on the mountaintop side to operate the vehicle (see, for example, Patent Document 2).

[0004] The pulley and winch drum for driving the cable are connected to an electric motor via a reduction gear, and the pulley is rotated by controlling the motor's rotation speed, and the vehicle is pulled by the cable for operation. The input shaft of the reduction gear or the output shaft of the electric shaft is equipped with a drum or disk type braking device, and when the vehicle arrives at a station, the braking device operates and detects the operation of the braking device to cut off the power supply to the electric motor, and the cable or vehicle is held stationary by the braking force of the brake (for example, see Patent Document 3). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2000-219131 A [Patent Document 2] JP 2007-190962 A [Patent Document 3] JP 2008-201390 A Summary of the Invention [Problem to be solved by the invention]

[0006] As described above, since a cable-towed inclined transport facility is a facility that transports people, etc. by towing vehicles with cables, excessive load (tension) on the cables may cause the cable wires to break or the cables themselves to break, and if the cables break, there is a risk that the vehicles will run away. Therefore, in a cable-towed inclined transport facility, it is necessary to monitor the load (tension) acting on the cables and operate the facility without placing an excessive load (tension) on the cables.

[0007] The present invention has been made in consideration of the above circumstances, and aims to provide an overload detection device for a cable-towed inclined transport vehicle, which can effectively monitor the load acting on the cable that tows the vehicle in a cable-towed inclined transport facility. [Means for solving the problem]

[0008] The invention of claim 1 is a cable-traction type inclined transportation equipment in which rails are laid between stations having an elevation difference, and vehicles running on the rails are transported by being pulled by a cable, the vehicle is provided with a cable drum around which the cable is wound and the ends of the cable are hung, the cable drum is provided with a load detection part that bulges outward to form a load detection part, and a load cell is fixed to the position where the load detection part rotates and comes into contact, thereby measuring the contact load of the load detection part.

[0009] The invention of claim 2 is characterized in that, in the overload detection device for a cable-towed inclined transport vehicle described in claim 1, a signal from the load cell is transmitted to a control device that controls the operation of the vehicle, and when the signal from the load cell exceeds a load value set in the control device, the vehicle is prevented from operating.

[0010] The invention of claim 3 is characterized in that, in the overload detection device for a cable-towed inclined transport vehicle described in claim 1 or claim 2, a signal from the load cell is transmitted to a control device that controls the operation of the vehicle, and when the signal from the load cell exceeds a load value set in the control device, the doors of the vehicle are prevented from closing. Effect of the Invention

[0011] According to the present invention, the load acting on the rope is measured using a load cell mounted on the vehicle, so that even if the weight of the load carried on the vehicle changes, the load acting on the rope can be accurately measured in response to this. [Brief description of the drawings]

[0012] [Figure 1] Longitudinal cross section of the track of the cable-traction type inclined transport facility [Diagram 2] Vehicle side view [Diagram 3] AA arrow view in Figure 2 [Figure 4] Plan view of the hook device [Diagram 5] Side cross-sectional view of the hook device DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a longitudinal track cross-sectional view showing an example of a track of a cable-traction type inclined transport facility. As shown in the figure, the track is formed by connecting a foothill station 10 located at a low altitude and a mountaintop station 11 located at a high altitude, and two rails 12 are laid parallel to each other in a horizontal direction connecting both stations 10, 11, and a cable 13 is extended along the rails 12. One end of the cable 13 is connected to a vehicle 14, and the other end is wound around a pulley 16 of a driving device 15 provided at the mountaintop station 11, and the vehicle 14 moves between the two stations 10, 11 by driving the pulley 16.

[0014] Fig. 2 is a side view of vehicle 14, and Fig. 3 is a view taken along the line AA in Fig. 2. Vehicle 14 comprises a passenger car 18 in which passengers board, and a bogie 17 which supports passenger car 18 and moves on rails 12. Passenger car 18 is of welded steel plate construction, and is equipped inside with seats, handrails, hanging straps, etc. Bogie 17 comprises a lower frame 19 and an upper frame 20 which are of welded steel construction. Lower frame 19 is disposed so as to be parallel to rails 12, and upper frame 20 provided above lower frame 19 is formed so that its upper portion is horizontal, and supports passenger car 18 so that the floor surface of passenger car 18 is horizontal.

[0015] A hanging device 21 for hanging the rope 13 on the vehicle 14 is provided on the inclined upper side of the lower frame 19. The hanging device 21 includes a rope drum 22 for winding the rope 13, and a clamp 23 that is attached to the rope 13 by clamping an end of the rope 13.

[0016] FIG. 4 is a plan view of the marking device 21, and FIG. 5 is a side cross-sectional view of the hanging device 21. A support bracket 24 is fixed to the lower frame 19 of the bogie 17, and the cable drum 22 is rotatably supported via a support pin 25 provided at the end of the support bracket 24. The cable drum 22 has a cylindrical wheel core 26 and a disk-shaped flange 27 fixed to the upper and lower end faces of the wheel core 26. The outer peripheral surface of the wheel core 26 is provided with a lining 28 made of an elastic material such as urethane, and the cable 13 led from above the track is wound around the outer circumference of the lining 28 several times. The end of the cable 13 extends below the track, and this extended part is clamped by the clamp 23. The flange 27 of the cable drum 22 has a marking part 29 bulging outwardly, and the cable 13 is hung on the cable drum 22 by the clamp 23 abutting against this part.

[0017] A load detection section 30 is formed in the flange 27 at a symmetrical position of the creasing section 29, substantially similar to the hanging section 29. Meanwhile, a load cell 31 is provided at a position facing the load detection section 30 on the lower frame 19, and the load detection section 30 and the load cell 31 come into contact with each other as the cable drum 22 rotates, and this contact load is detected by the load cell 31. That is, the load in the direction of arrow B acting on the cable 13 towing the vehicle 14 is converted into a load in the direction of arrow C as the cable drum 22 rotates, and is further converted into a load in the direction of arrow D where the load detection section 30 comes into contact with the load cell 31, and this load is detected by the load cell 31. Therefore, the load acting on the cable 13 is converted and calculated with a predetermined value, and is detected as the value of the load detected by the load cell 31.

[0018] The load signal detected by the load cell 31 is sent to a control device that controls the operation of the vehicle 14. The load detected by the load cell 31 when the maximum allowable load acts on the cable 13 is set in the control device, and when the vehicle 14 is stopped at the bus stops 10 and 11, the load detected by the load cell 31 is compared with the load set by the control device. When the vehicle 14 stops on the inclined rail 12 at the bus stops 10 and 11, the doors of the vehicle 14 are opened to allow passengers to board and disembark and to load and unload items, and the load carried by the vehicle 14 changes accordingly, and the load acting on the cable 13 also changes. When the load carried by the vehicle 14 is equal to or greater than the specified load, that is, when the load is an overload, the load detected by the load cell 31 exceeds the load set by the control device, and the control device controls the vehicle 14 so that the door of the vehicle 14 is not closed and the vehicle 14 cannot start operation. At this time, a warning sound or voice may be emitted to warn that the load carried by the vehicle 14 is an overload.

[0019] According to the above configuration, the load acting on the cable 13 is measured by the load cell 31 provided on the vehicle 14, so that even if the weight of the load carried on the vehicle 14 changes, the load acting on the cable 13 can be accurately measured accordingly. Furthermore, if a load exceeding a set load is measured, the doors of the vehicle 14 do not close and the vehicle 14 does not depart the station, ensuring the safety of the cable 13. This also means that there is no need to measure the load with the load cell 31 while the vehicle 14 is running on the tracks, which is economical. [Explanation of symbols]

[0020] 10 Sanroku Stop 11 Summit stop 12 Rail 13 Cable 14 Vehicles 15. Power Plant 16 Pulley 17 Trolley 18 Passenger car 19 Lower Frame 20 Upper Frame 21 Latching device 22 Cable drum 23 Clamp 24 Support bracket 25 Support pin 26 Wheel core 27 Flange 28 Lining 29 Latch part 30 Load detection unit 31 Load Cell A, B, C, D arrows

Claims

1. In a cable-tracted inclined transport facility in which rails are laid between stations having a difference in elevation and vehicles running on the rails are transported by being pulled by a cable, a cable drum around which the cable is wound and the ends of the cable are hung is provided on the vehicle in a rotatable manner, the cable drum bulges outward to form a load detection section, and a load cell is fixed to the position where the load detection section rotates and comes into contact with it, thereby measuring the contact load of the load detection section.

2. 2. The overload detection device for a cable-tracted inclined transport vehicle according to claim 1, characterized in that a signal from the load cell is sent to a control device that controls the operation of the vehicle, and when the signal from the load cell exceeds a load value set in the control device, the vehicle is prevented from operating.

3. 3. An overload detection device for a cable-tracted inclined transport vehicle as claimed in claim 1 or 2, characterized in that a signal from the load cell is sent to a control device which controls the operation of the vehicle, and when the signal from the load cell exceeds a load value set in the control device, the door of the vehicle is prevented from closing.

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